期刊
PROGRESS IN ORGANIC COATINGS
卷 133, 期 -, 页码 325-339出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2019.04.072
关键词
FeTiO3/melamine formaldehyde composite; Corrosion mitigation; Electrochemical behavior; EIS; SEM; EDX
资金
- Egyptian Petroleum Research Institute (EPRI)
Currently, construction of composite coating is considered a vital pattern for corrosion protection of steel petroleum internal lining applications. For supporting this concept, the potential of incorporating various loading levels of fabricated FeTiO3 (ilmenite)/melamine formaldehyde composite (IMFC) particles on the corrosion mitigation behavior and chemical resistance of the epoxy coating was investigated. Micro-sized FeTiO3 natural pigment particles were obtained by a direct solid phase milling process as a bi-functional modifier. Characterizations for the micro-sized FeTiO3 grains were clarified using scanning electron microscope (SEM), x-ray diffraction (XRD) and dynamic light scattering (DLS) methods. The electrochemical behavior of epoxy coated films against blank carbon steel surface in high salinity formation water has been examined by using both potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. Cure durability and water resistance tests were performed according to standard protocols to confirm the chemical resistance property of the modified coating. Scanning electron microscope (SEM) and energy dispersive analysis of X-rays (EDX) analysis were performed to investigate the corrosion protection performance of the surface modified IMFC epoxy coated film compared to the unmodified conventional coating on the C-steel substrate in high salinity formation water solution. The results of this study boosted the prominent corrosion mitigation behavior of the considered modified epoxy composite coating.
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